Write a program that reads a single number and prints its increment, i.e. its value added to one.
Your program should read from the standard input and print to the standard output. The standard input and output devices are usually the keyboard and screen of a command line session. Here are a few example sessions:
$ ./inc1 2 3 $ ./inc1 123 124
The input contains a single line with one integer x where
0 ≤ x ≤ 100 000.
The output should contain a line with a single integer y where y = x + 1 and should be terminated by a line break.
For a full score,
in addition to producing the correct output,
the program should be implemented using a
that receives one integers as argument and returns an integer.
Please refer to the information for the chosen language:
int inc(int x);
inc :: Int -> Int
int inc(int x);
public static int Inc(int x)inside a class
public static int inc(int x)inside a public class
If you’re confused, try earning a partial score first.
Submit your solution to be graded according to the following list:
Automated judge: Keep in mind that when your program is submitted it will not be run by a human but instead by an automated judge. Instructions should be followed exactly or the judge will not give you a full score.
Your program should not print messages like
Please type a number: or
The increment is 10.
Instead, just print the resulting number
followed by a line break
as in the example output.
Your program should print the addition result then exit immediately.
Do not use
sleep(1) or anything of sorts.
Redirecting input: On most systems (Windows / Linux / OS X), it is possible to redirect the standard input and output of your program to files, like so:
$ ./inc1 <inputfile.txt >outputfile.txt
If you create a plain text file with the “example input”, the above command should produce a plain text file with the “example output”.
On Windows, you should not use
./ to run a program in the current directory,
C:\> inc1.exe 41 42
try first: repeat1
try also: triple1
try next: add1
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